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segmental |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Segmental \Seg*men"tal\, a. 1. Relating to or being a segment. 2. (Anat. & Zo["o]l.) a Of or pertaining to the segments of animals; as a segmental duct; segmental papill[ae]. b Of or pertaining to the segmental organs. {Segmental duct} (Anat.), the primitive duct of the embryonic excretory organs which gives rise to the Wolffian duct and ureter; the pronephric duct. {Segmental organs}. a (Anat.) The embryonic excretory organs of vertebrates, consisting primarily of the segmental tubes and segmental ducts. b (Zo["o]l.) The tubular excretory organs, a pair of which often occur in each of several segments in annelids. They serve as renal organs, and often also as oviducts and sperm ducts. See Illust. under {Sipunculacea}. {Segmental tubes} (Anat.), the tubes which primarily open into the segmental duct, some of which become the urinary tubules of the adult. From WordNet r 1.6 [wn]: segmental adj 1: (linguistics) divided or organized into speech segments or isolable speech sounds 2: (zoology) having the body divided into successive metameres or segments, as in earthworms or lobsters [syn: {metameric}, {segmented}]
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